Pro Jewelry " Birthstone December Blue Zircom Rhinestone 	" Bead Charm for Snake Chain Charm Bracelet Quantity: 1 Bead Size Hole is 5.5mm slide on Cores (not threaded) Fits: All major Brand Bracelets, such as Pandora,Brighton, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets.